how do you rotate a triangle 90 degrees?

3 ⤊

how do you rotate a triangle 90 degrees?

How would you rotate a triangle XYZ 90 degrees clockwise?
How do you find the new coordinates?

2007-08-12 16:18:16 · 3 answers · asked by ems 2 in Science & Mathematics ➔ Mathematics

3 answers

If (a,b) is any point that is going to be rotated clockwise, the new coordinates will be (b, -a). ©

2007-08-12 16:30:34 · answer #1 · answered by Alam Ko Iyan 7 · 2⤊ 0⤋

given points
x1, y1
x2, y2
x3, y3
center of rotation
a, b
New coordinates
x4, y4 (x1, y1)
x5, y5 (x2, y2)
x6, y6 (x3, y3)
Rotation 90Â° CW:
x4 = a + y1 - b
y4 = b - x1 + a
x5 = a + y2 - b
y5 = b - x2 + a
x6 = a + y3 - b
y6 = b - x3 + a

2007-08-13 01:48:44 · answer #2 · answered by Helmut 7 · 1⤊ 0⤋

counter clockwise

2007-08-12 23:23:33 · answer #3 · answered by ning 1 · 0⤊ 2⤋